Meatballs:

• 1 lb ground beef (or a mix of beef and pork)
• 1/2 cup panko breadcrumbs
• 1 large egg
• 2 cloves garlic, minced
• 2 green onions, finely chopped
• 1 tablespoon fresh ginger, grated
• 2 tablespoons soy sauce
• 1 tablespoon sesame oil
• 1 tablespoon brown sugar
• 1/2 teaspoon black pepper
• 1/4 teaspoon red pepper flakes (optional)

Sauce:

• 1/4 cup soy sauce
• 2 tablespoons brown sugar
• 2 tablespoons rice vinegar
• 1 tablespoon gochujang (Korean chili paste)
• 1 tablespoon sesame oil
• 1 clove garlic, minced
• 1 teaspoon grated ginger
• 1 teaspoon cornstarch mixed with 2 tablespoons water

Spicy Mayo Dip:

• 1/2 cup mayonnaise
• 2 tablespoons sriracha
• 1 teaspoon lime juice